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The price of a book is reduced twice by 10% each. To restore the reduc
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07 Jul 2024, 15:28
07 Jul 2024, 15:28
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77% (00:53) correct
22% (00:33) wrong based on 9 sessions
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The price of a book is reduced twice by 10% each. To restore the reduced price to its original price, the reduced price must be increased by a percentage that is:
Show: ::
\(\frac{1900}{81}\)
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Shorter GRE - Preparing for the Quantitative Reasoning Measure
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Free Materials for the GRE General Exam - Where to get it!!
Shorter GRE - Preparing for the Quantitative Reasoning Measure
Shorter GRE - Preparing for the Verbal Reasoning Measure
Re: The price of a book is reduced twice by 10% each. To restore the reduc
[#permalink]
22 Sep 2024, 18:48
22 Sep 2024, 18:48
1
Pick a number
Let's say the original price of the book is $100
Book is reduced twice by 10% each, that means the new price is 0.9*0.9*100 = $81
Use percent change formula to find the answer:
PC/100 = (100 - 81)/81 <=> PC = 1900/81
Let's say the original price of the book is $100
Book is reduced twice by 10% each, that means the new price is 0.9*0.9*100 = $81
Use percent change formula to find the answer:
PC/100 = (100 - 81)/81 <=> PC = 1900/81
gmatclubot
Re: The price of a book is reduced twice by 10% each. To restore the reduc [#permalink]
22 Sep 2024, 18:48
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